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Finding the Fourth Proportional to 567,846.40, 851,769.60 and 426,128.80

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Solution

The fourth proportional to 567,846.40, 851,769.60 and 426,128.80 is: 639,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,846.40 : 851,769.60 = 426,128.80 : x
  2. Step 2: Convert to fraction form
    567,846.40/851,769.60 = 426,128.80/x
  3. Step 3: Cross multiply
    567,846.40x = 851,769.60 × 426,128.80
  4. Step 4: Simplify right side
    567,846.40x = 362,963,557,524.48
  5. Step 5: Solve for x
    x = 362,963,557,524.48/567,846.40
  6. Step 6: Final answer
    x = 639,193.20

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